US5073263A - Method and article for restraining extrusion of feed spacers and circumferential expansion in spiral filtration modules - Google Patents

Method and article for restraining extrusion of feed spacers and circumferential expansion in spiral filtration modules Download PDF

Info

Publication number
US5073263A
US5073263A US07/586,578 US58657890A US5073263A US 5073263 A US5073263 A US 5073263A US 58657890 A US58657890 A US 58657890A US 5073263 A US5073263 A US 5073263A
Authority
US
United States
Prior art keywords
outerwrap
module
leaves
around
spacer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US07/586,578
Other languages
English (en)
Inventor
Carlos A. Fagundes
Thomas C. McDermott, Jr.
David M. Colby
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kovalus Separation Solutions LLC
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Assigned to KOCH MEMBRANE SYSTEMS, INC. reassignment KOCH MEMBRANE SYSTEMS, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: COLBY, DAVID M., FAGUNDES, CARLOS A., MCDERMOTT, THOMAS C. JR.
Priority to US07/586,578 priority Critical patent/US5073263A/en
Priority to CA002043330A priority patent/CA2043330C/en
Priority to DK91305164.5T priority patent/DK0478111T3/da
Priority to DE69104945T priority patent/DE69104945T2/de
Priority to EP91305164A priority patent/EP0478111B1/de
Priority to AT91305164T priority patent/ATE113500T1/de
Priority to JP14508291A priority patent/JP3255432B2/ja
Publication of US5073263A publication Critical patent/US5073263A/en
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/10—Spiral-wound membrane modules
    • B01D63/107—Specific properties of the central tube or the permeate channel

Definitions

  • This invention relates generally to ultrafiltration technology and, more specifically, to a spiral wound filtration module for use in cross flow filtration and method of constructing same.
  • a typical design for an ultrafiltration device is to provide a spiral wrapped filtration module.
  • Such a module is made by providing a permeate tube around which is wound one or more permeate envelopes or membrane leaves. These membrane leaves are separated by feed spacer screens.
  • the spirally wound leaves have heretofore been held in place by a bypass spacer screen which is fused to the outside end of one layer of the feed spacer screen.
  • the bypass screen is then wound around the circumference of the assembled leaves and ultimately fused to itself to complete the module.
  • the module is loaded into a housing or pressure vessel and operated at a slight pressure drop across the module.
  • Normal flow conditions also include temperatures in the range of 80°-140° F.
  • a combination of the hydraulic forces exerted on the module and the heat from the processing operation have a tendency to soften the thermoplastic materials utilized as the bypass and feed spacer screens. This may cause the spiral to loosen reducing the frictional forces holding successive material layers and ultimately causing the feed spacer screen to extrude.
  • Such extrusion can lead to sanitation problems and low operating efficiency caused by low flow regions attributable to the extrusion problem.
  • the increase in outer diameter which results from the extrusion also makes the modules difficult to remove for replacement, inspection or testing.
  • an object of the present invention to provide an ultrafiltration module and method of constructing same which substantially precludes feed spacer extrusion and circumferential expansion by circumscribing the module with one or more restraining bands.
  • Another object of the invention is to provide an ultrafiltration module which is not subject to feed spacer extrusion or circumferential expansion and a method of constructing same which will not require modification of existing pressure vessels that comprise a part of typical filtration systems.
  • FIG. 1 is a perspective view of a filtration module constructed according to the present invention
  • FIG. 2 is a perspective view of the module shown in FIG. 1 after the membrane leaves have been wound around the permeate tube and the bypass spacer screen has been placed;
  • FIG. 3 is another perspective view of the completed filtration module according to the present invention with portions broken away to illustrate details of construction
  • FIG. 4 is a side elevational view of the module according to the present invention.
  • a filtration module is designated generally by the numeral 10 (FIG. 3) and comprises an elongated permeate collection tube 12 having a plurality of holes 14 in the tube wall.
  • each leaf 16 will normally comprise two ultrafiltration membrane sheets separated by a permeate collection sheet which may be an open mesh screen material formed from an inert composition.
  • the leaves are secured to the tube at the opposite ends of the latter by gluing.
  • the membrane leaf is wrapped around tube 12 to form a plurality of layers, the layers are separated by a feed spacer screen 18 through which fluid can easily pass as a result of the open mesh construction.
  • the length of screen 18 which separates the membrane leaves is preferably selected so that it will extend at least to the terminal end 17 of the underlying leaf.
  • outerwrap 20 is presented by four feed spacer screens which extend beyond the terminal ends of the underlying membrane leaves and overlap each other to present an outerwrap that completely circumscribes the spirally wound leaves.
  • bands 22 are sized to be slightly larger in diameter than the outside diameter of outerwrap 20 so that the bands can be easily moved into position on the module.
  • Bands 22 are preferably constructed from a heat shrinkable composition such as polytetrafluoroethylene polymer which will respond at temperatures of between 750°-1000° F. applied in a localized fashion while slowly rotating the module. A typical module will require a total time of three to five minutes to completely shrink each band diameter by 10-15%.
  • a final bypass spacer screen 24 is attached to the outerwrap 20 in a manner so as to overlie restraining bands 22.
  • Screen 24 is another sheet of open mesh material. This screen is fused to the outerwrap 20 (except for the areas where bands 22 are located) and then spirally wound around the circumference of the module assembly overlapping itself slightly before terminating. The bypass screen 24 is then fused to itself in the overlap area which fused area is designated by the numeral 25 in FIGS. 3 and 4.
  • bypass screen 24 is fused to the outerwrap 20 at spaced apart locations designated by the numeral 26 on either side of bands 22 and circumferentially spaced around the perimeter of the assembled module 10.
  • the fused areas 26 serve to lock bands 22 in place against movement in an axial direction along the spiral assembly.
  • a fluid to be filtered is introduced as feed stock at one end of the housing (not shown) into which module 10 is adapted to be inserted.
  • This feed stock passes in a axial direction along the channels created by the feed channel spacer screens 18.
  • the permeate fraction may then enter the membrane material of the individual leaves 16 and eventually will be discharged from the membrane envelope and enter tube 12 through openings 14.
  • the filtrate will continue to flow axially and will be removed through a separate filtrate outlet of the housing.
  • bands 22 are not capable of passing fluid, they are surrounded on all sides by screen material (outerwrap 20 and bypass screen 24) which will assure continual passage of fluid over the band surfaces thus maintaining hygienic integrity.
  • bands 22 are of a sufficient strength so as to retain the original diameter of the module assembly notwithstanding the tendency of the feed spacer screen material to extrude under the operating conditions previously discussed.
  • the present invention also encompasses a method of constructing a spiral wound filtration module by providing a longitudinally extending permeate carrier tube, providing at least one filtration membrane leaf, providing a fluid passable spacer means on top of said membrane leaf, attaching the leaf to the tube in a manner well known to those skilled in the art, followed by wrapping the membrane leaf and the spacer means around the tube to present a plurality of spaced membrane layers.
  • the length of the spacer means is selected so that it will extend at least to the terminal end of the outermost layer of the membrane leaf and, preferably, beyond the ends of the leaves sufficiently to form an outerwrap screen which surrounds the wound leaves.
  • a plurality of restraining bands are tightly secured around the outerwrap at longitudinally spaced apart locations to hold the wound layers and the outerwrap in place.
  • a fluid passable spacer means is then wrapped around the restraining bands and the outerwrap to assure the presence of a fluid passable surface on all sides of the restraining bands 22.
  • the spacer screen 24 is secured in place by overlapping onto itself and fusing the overlapped portions together to present the completed module assembly.
  • the bypass spacer screen is also fused to the outerwrap at circumferentially spaced locations on either side of bands 22 so as to lock the bands in place and preclude axial movement in either direction.
  • the mesh material which is utilized for the feed spacer screen 18, the outerwrap 20 and the bypass spacer screen 24 may be made of various inert compositions well known to those skilled in the art. Typical materials include high and low density polyolefins, such as polyethylene, polypropylene or polyester. NylonTM (Reg. TM) and other materials having comparable characteristics are also acceptable.
  • the bands 22 may be constructed from various materials so long as the material is unreactive with the substance being filtered and is also capable of being tightly engaged with the spiral wound assembly. Likewise, the number of bands and the spacing (if any) between bands can be varied to meet the operating requirements or economics of a particular filtration module. While a plurality of bands in spaced relationship will normally be utilized, a single wide band may be suitable for a particular installation.
  • outerwrap 20 by extending feed spacer screens beyond the terminal ends of the respective underlying leaves, it would also be possible to form the outerwrap by a separate screen which is fused to a feed spacer screen and then wound around the circumference of the spirally wound leaves.
  • the method and device of the present invention are applicable to various types of cross flow filtration including ultrafiltration, microfiltration and reverse osmosis.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Filtering Materials (AREA)
US07/586,578 1990-09-21 1990-09-21 Method and article for restraining extrusion of feed spacers and circumferential expansion in spiral filtration modules Expired - Lifetime US5073263A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US07/586,578 US5073263A (en) 1990-09-21 1990-09-21 Method and article for restraining extrusion of feed spacers and circumferential expansion in spiral filtration modules
CA002043330A CA2043330C (en) 1990-09-21 1991-05-27 Method and article for restraining extrusion of feed spacers and circumferential expansion in spiral filtration modules
EP91305164A EP0478111B1 (de) 1990-09-21 1991-06-07 Verfahren und Vorrichtung zum Verhindern des Herausdrückens von Abstandshaltern und der Ausdehnung des Umfanges spiralförmig gewickelter Filtrationsmodule
DE69104945T DE69104945T2 (de) 1990-09-21 1991-06-07 Verfahren und Vorrichtung zum Verhindern des Herausdrückens von Abstandshaltern und der Ausdehnung des Umfanges spiralförmig gewickelter Filtrationsmodule.
DK91305164.5T DK0478111T3 (da) 1990-09-21 1991-06-07 Fremgangsmåde og genstand til at hindre udpresning af afstandsorganer og periferiudvidelse ved spiralformede filtreringsmoduler
AT91305164T ATE113500T1 (de) 1990-09-21 1991-06-07 Verfahren und vorrichtung zum verhindern des herausdrückens von abstandshaltern und der ausdehnung des umfanges spiralförmig gewickelter filtrationsmodule.
JP14508291A JP3255432B2 (ja) 1990-09-21 1991-06-18 うず巻ろ過モジユールにおける給液スペーサの押出し及び円周方向の膨張を抑制したモジユールとその構成方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/586,578 US5073263A (en) 1990-09-21 1990-09-21 Method and article for restraining extrusion of feed spacers and circumferential expansion in spiral filtration modules

Publications (1)

Publication Number Publication Date
US5073263A true US5073263A (en) 1991-12-17

Family

ID=24346318

Family Applications (1)

Application Number Title Priority Date Filing Date
US07/586,578 Expired - Lifetime US5073263A (en) 1990-09-21 1990-09-21 Method and article for restraining extrusion of feed spacers and circumferential expansion in spiral filtration modules

Country Status (7)

Country Link
US (1) US5073263A (de)
EP (1) EP0478111B1 (de)
JP (1) JP3255432B2 (de)
AT (1) ATE113500T1 (de)
CA (1) CA2043330C (de)
DE (1) DE69104945T2 (de)
DK (1) DK0478111T3 (de)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993022038A1 (en) * 1992-05-01 1993-11-11 Filmtec Corporation Spiral wound membrane element
US5562827A (en) * 1993-08-24 1996-10-08 Sartorius Ag Heat-sterilizable spiral-wound membrane filter cartridge
US5994534A (en) * 1995-03-10 1999-11-30 Lek Pharmaceutical And Chemical Co. D.D Process for the preparation of pharmaceutically acceptable salts of clavulanic acid
WO1999065594A1 (fr) * 1998-06-18 1999-12-23 Toray Industries, Inc. Element en spirale de membrane d'osmose inverse, module de membrane d'osmose inverse utilisant cet element, dispositif et procede destines a la separation par osmose inverse integrant ce module
US6068771A (en) * 1999-02-11 2000-05-30 Koch Membrane Systems, Inc. Method for sealing spiral wound filtration modules
US6207428B1 (en) 1994-03-02 2001-03-27 Lek Pharmaceutical & Chemical Co. D.D. Process for the isolation of clavulanic acid and of pharmaceutically acceptable salts thereof from the fermentation broth of streptomyces sp. P 6621 FERM P 2804
US6299772B1 (en) 1996-10-10 2001-10-09 The Dow Chemical Company Fluid filter assemblies with integral fluid seals
US20070175812A1 (en) * 2004-03-26 2007-08-02 Nitto Denko Corporation Spiral type separation membrane element
WO2007131033A3 (en) * 2006-05-02 2008-01-03 Parker Hannifin Corp Energy saving fluid separation device
US20080302719A1 (en) * 2007-06-11 2008-12-11 Shinichi Chikura Spiral membrane element and method of producing the same
US20090065426A1 (en) * 2006-03-13 2009-03-12 Nitto Denko Corporation Spiral membrane element
US7998348B2 (en) 2006-03-09 2011-08-16 Nitto Denko Corporation Spiral membrane element and process for producing the same
US8303815B2 (en) 2005-10-31 2012-11-06 Nitto Denko Corporation Spiral separation membrane element
WO2013095798A1 (en) * 2011-12-21 2013-06-27 General Electric Company Spiral wound membrane module with a reinforcement element
WO2019168841A1 (en) * 2018-02-28 2019-09-06 Bl Technologies, Inc. Sanitary sprial wound membrane element with bypass control ring
WO2024218230A1 (en) 2023-04-19 2024-10-24 Alfa Laval Corporate Ab A filtration module and a method of installing a filtration module

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5090017B2 (ja) * 2006-03-09 2012-12-05 日東電工株式会社 スパイラル型膜エレメント及びその製造方法
DE102011006543A1 (de) * 2011-03-31 2012-10-04 Krones Aktiengesellschaft Membranfitrationsmodul
CN104492267B (zh) * 2014-11-24 2016-08-31 韩佳（上海）环保设备有限公司 一体化复合卷式膜

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4301013A (en) * 1980-09-11 1981-11-17 Abcor, Inc. Spiral membrane module with controlled by-pass seal
US4906372A (en) * 1989-05-17 1990-03-06 Desalination Systems, Inc. Spiral-wound membrane cartridge

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4021351A (en) * 1975-10-30 1977-05-03 Desalination Systems, Inc. Membrane cartridge with improved central collection tube
US4814079A (en) * 1988-04-04 1989-03-21 Aqua-Chem, Inc. Spirally wrapped reverse osmosis membrane cell
US4902417A (en) * 1988-06-14 1990-02-20 Desalination Systems, Inc. Spiral-wound membrane cartridge with ribbed and spaced carrier layer
US4861487A (en) * 1989-02-08 1989-08-29 Fulk Jr Clyde W Spiral wound membrane modules and systems with improved feed spacer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4301013A (en) * 1980-09-11 1981-11-17 Abcor, Inc. Spiral membrane module with controlled by-pass seal
US4906372A (en) * 1989-05-17 1990-03-06 Desalination Systems, Inc. Spiral-wound membrane cartridge

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5538642A (en) * 1992-05-01 1996-07-23 The Dow Chemical Company Spiral wound membrane element
WO1993022038A1 (en) * 1992-05-01 1993-11-11 Filmtec Corporation Spiral wound membrane element
US5562827A (en) * 1993-08-24 1996-10-08 Sartorius Ag Heat-sterilizable spiral-wound membrane filter cartridge
US6207428B1 (en) 1994-03-02 2001-03-27 Lek Pharmaceutical & Chemical Co. D.D. Process for the isolation of clavulanic acid and of pharmaceutically acceptable salts thereof from the fermentation broth of streptomyces sp. P 6621 FERM P 2804
US6566106B2 (en) 1994-03-02 2003-05-20 Lek Pharmaceutical & Chemical Co., D.D. Process for the isolation of clavulanic acid and of pharmaceutically acceptable salts thereof
US5994534A (en) * 1995-03-10 1999-11-30 Lek Pharmaceutical And Chemical Co. D.D Process for the preparation of pharmaceutically acceptable salts of clavulanic acid
US6299772B1 (en) 1996-10-10 2001-10-09 The Dow Chemical Company Fluid filter assemblies with integral fluid seals
WO1999065594A1 (fr) * 1998-06-18 1999-12-23 Toray Industries, Inc. Element en spirale de membrane d'osmose inverse, module de membrane d'osmose inverse utilisant cet element, dispositif et procede destines a la separation par osmose inverse integrant ce module
US6656362B1 (en) 1998-06-18 2003-12-02 Toray Industries, Inc. Spiral reverse osmosis membrane element, reverse osmosis membrane module using it, device and method for reverse osmosis separation incorporating the module
US6068771A (en) * 1999-02-11 2000-05-30 Koch Membrane Systems, Inc. Method for sealing spiral wound filtration modules
US20070175812A1 (en) * 2004-03-26 2007-08-02 Nitto Denko Corporation Spiral type separation membrane element
US8361318B2 (en) 2004-03-26 2013-01-29 Nitto Denko Corporation Spiral type separation membrane element
US20100096316A1 (en) * 2004-03-26 2010-04-22 Shinichi Chikura Spiral type separation membrane element
US20100108593A1 (en) * 2004-03-26 2010-05-06 Shinichi Chikura Spiral type separation membrane element
US8303815B2 (en) 2005-10-31 2012-11-06 Nitto Denko Corporation Spiral separation membrane element
US7998348B2 (en) 2006-03-09 2011-08-16 Nitto Denko Corporation Spiral membrane element and process for producing the same
US20090065426A1 (en) * 2006-03-13 2009-03-12 Nitto Denko Corporation Spiral membrane element
US20090200237A1 (en) * 2006-05-02 2009-08-13 Weber David B Energy saving spiral element
WO2007131033A3 (en) * 2006-05-02 2008-01-03 Parker Hannifin Corp Energy saving fluid separation device
US20080302719A1 (en) * 2007-06-11 2008-12-11 Shinichi Chikura Spiral membrane element and method of producing the same
US9604179B2 (en) * 2007-06-11 2017-03-28 Nitto Denko Corporation Spiral membrane element and method of producing the same
WO2013095798A1 (en) * 2011-12-21 2013-06-27 General Electric Company Spiral wound membrane module with a reinforcement element
WO2019168841A1 (en) * 2018-02-28 2019-09-06 Bl Technologies, Inc. Sanitary sprial wound membrane element with bypass control ring
WO2024218230A1 (en) 2023-04-19 2024-10-24 Alfa Laval Corporate Ab A filtration module and a method of installing a filtration module

Also Published As

Publication number Publication date
DE69104945D1 (de) 1994-12-08
CA2043330C (en) 1996-10-08
JPH067649A (ja) 1994-01-18
ATE113500T1 (de) 1994-11-15
EP0478111A1 (de) 1992-04-01
JP3255432B2 (ja) 2002-02-12
DE69104945T2 (de) 1995-04-20
EP0478111B1 (de) 1994-11-02
DK0478111T3 (da) 1995-04-24
CA2043330A1 (en) 1992-03-22

Similar Documents

Publication Publication Date Title
US5073263A (en) Method and article for restraining extrusion of feed spacers and circumferential expansion in spiral filtration modules
US4906372A (en) Spiral-wound membrane cartridge
US4548714A (en) Semipermeable membrane cartridge for use with a pressure container
US5227063A (en) Tubular membrane module
US5885454A (en) Separation module and bundle unit of hollow thread-type porous membrane elements and methods of producing same
US4083780A (en) Fluid purification system
EP1519782B1 (de) Blasenschutz für spiralförmig gewickelte elemente
EP0819466B1 (de) Spiralförmig gewickeltes Membranmodul
EP1414554A1 (de) Endkappe für trennmembran
WO2010068368A1 (en) Membrane leaf packet with reinforced fold
JP7167140B2 (ja) スパイラル型巻線要素用の橋梁支持及び低減した供給スペーサ
JPH0615149A (ja) 清掃性及び運転効率を改良したうず巻ろ過モジユール
EP1444024B1 (de) Filtermodul und verfahren zu seiner herstellung
JP4411464B2 (ja) 流動媒体のための濾過・分離装置
US20090200237A1 (en) Energy saving spiral element
US6413424B1 (en) Sanitary style filter element
JPS62247804A (ja) 膜分離装置用渦巻型膜エレメント
JP3900624B2 (ja) 膜分離装置
JP3536603B2 (ja) 膜分離装置
EP0485674A1 (de) Spiralförmiger Filtermodul mit verstärkten Membranen in Blattform und Verfahren zu seiner Herstellung
RU2639907C2 (ru) Способ и устройство для фильтрации и разделения текучих сред посредством мембран
JPH02194822A (ja) スパイラル型膜モジュール
US20130161253A1 (en) Reinforcement element
JPH10137560A (ja) スパイラル型分離膜エレメントおよびその製造方法
JP2003275547A (ja) スパイラル型膜エレメント及びその製造方法

Legal Events

Date Code Title Description
AS Assignment

Owner name: KOCH MEMBRANE SYSTEMS, INC., DELAWARE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:FAGUNDES, CARLOS A.;MCDERMOTT, THOMAS C. JR.;COLBY, DAVID M.;REEL/FRAME:005464/0931

Effective date: 19900919

STCF Information on status: patent grant

Free format text: PATENTED CASE

FPAY Fee payment

Year of fee payment: 4

CC Certificate of correction
FPAY Fee payment

Year of fee payment: 8

FPAY Fee payment

Year of fee payment: 12

REMI Maintenance fee reminder mailed